1. Gordon, M. S., Bartholomew, G. A., Grinnell, A. D., Jorgensen, C. B., and White, F. N., Animal Function: Principles and Adaptations (Macmillan, New York, 1968).
2. Colbert, E. H., Dinosaurs: Their Discovery and Their World (Dutton, New York, 1961).
3. Russell, L. S., J. Paleont., 39, 497 (1965).
4. Ostrom, J. H., Proc. N. Amer. Paleont. Conf., D, 347 (1969).
5. Bakker, R. T., Evolution, 25, 636 (1971).